Decimal to binary conversion in C uses the repeated-division-by-2 algorithm: divide the number by 2, record the remainder (0 or 1), then divide again until the quotient reaches 0. Reading the remainders from bottom to top gives the binary equivalent. This conversion is foundational for understanding how computers store integers — every value you work …
Finding the largest of three numbers is one of the first real decisions a C program has to make. It sounds simple, but it teaches you conditional logic, how the if-else ladder works, and why wrapping repeated logic in a function pays off immediately. This post shows three approaches — a plain if-else, a ternary …
A triangle is classified by the relationship between its three sides: Equilateral — all three sides are equal (all angles are 60°) Isosceles — exactly two sides are equal (two base angles are equal) Scalene — all three sides are different (all angles are different) Before classifying, the program validates the triangle inequality: for any …
The area of an isosceles triangle in C is computed using the Pythagorean theorem: given the base and the length of the two equal sides, you drop a perpendicular from the apex to the midpoint of the base, splitting the triangle into two right triangles. The height h = sqrt(side² − (base/2)²), and the area …